Patent US3381713A successfully refreshed from Google Patents.
US3381713A
Expired / Lapsed
US
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Turning vane and rail construction
Assignee: Individual
•
Filing: 1965-10-14
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Granted: 1968-05-07
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Expires: 1985-10-14
Abstract
No abstract record available.
Inventors
- 👤 Gordon R Jacobsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:48
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/081; F15; F15D; F15D1/00; F15D1/02; F15D1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2297979A
Cited
US2359579A
Cited
US2861597A
Cited
US2819732A
Cited
US2884956A
Cited
US2980340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |